Machine for forming pulp stoppers.



BEST AVAILABLE COP PATENTED 001'. 10,19o5.. R. W. GOEB.

MACHINE FOR FORMING PULP STOPPERS.

APPLICATION FILED JAN. 19. 1905.

11 SHEETS sum 1.

EST AVAILABLE COP\ PATENTED OCT. 10, 1905.

RJW. GOEB. MACHINE FOR FORMING PULP STOPPERS.

APPLICATION FILED JAN. 19. 1905.

' 17 SHEETS-SHEET 2.

M w- @WA/o gg i gin-ages.- W07, Q Q A BEST AVAILABLE COP No. 801,659. PATENTED OCT. 10, 1905.

R. W. GOEB.

MACHINE FOR'FORMING PULP STOPPERS.

APPLICATION FILED JAN. 19. 1905.

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BEST AVAiLABLE COP No 801,659. I PATEN-TED OCT. 10, 1905. R. W. GOEB.

MACHINE FOR FORMING PULP STOPPERS.

APPLICATION FILED JAN. 19, 1905.

17 SHEETS-SHEET 4.

BEST AVASLABLE COP No. 801,659. .PATENTBD 001". 10, 1905.

R. W. GOEBQ MACHINE FOR FORMING PULP STOPPERS..

APPLICATION FILED JAN-19. 1905.

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BEST AVAILABLE COP No. 801,659. PATBNTED ocw. 10, 1905.

R. W. GOBB. MACHINE FOR FORMING PULP STOPPERS.

APPLIOATION FILED JAN-19. 19 5.

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BEST AVAILABLE COP No. 801,659. PATENTED OCT. 10, 1905.

R. W. GOEBJ MACHINE FOR FORMING PULP STOPPERS.

APPLICATION FILED JAN.19. 1905 17 SHEETS-SHEET 7.

BESTQA'VAILABLE COP R. W. GOBB.

PATENTBD OCT. 10, 1905..

MACHINE FOR FORMING PULP STOiPERS.

APPLIOATIOK FILED JAR. 19, 1905.

BEST AVAlLABLE COP R. W. GOBB.

PAT'BNTED 001:. 10, 1905.

MACHINE FOR PORMINGPULP STOPPERS.

APPLICATION FILED JAN. 19. 1905.

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/04 Even?? jiftzhesaeq" ZJ M QZ BEST AVAILABLE COP No. 801,659. PATENTED OCT. 10; 1905. R. W. GOEB. MACHINE FOR FORMING PULP STOPP ERS.

APPLICATION FILED JAN.19, 1905.

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M 3531' AVAILABLE COP R. W. GOEB.

I MACHINE FOR FORMING PULP STOPPBRS.

APPLICATION FILED JAN.19,1905.

17 SHEBTS-SHEET 11.

PATENTBD OCT. 10, 1905.

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BEST AVAILABLE COP No. 801,659. PATENTED OCT. 10, 1905. -R. W. GOEB.

MACHINE FOR FORMING PULP STOPPBRS.

APPLICATION FILED JAN 19 1905 SHEETS-SHEET 12.

BEST AVAILABLE COP R. W. GOEB.

MACHINE FOR FORMING PULP STOPPE-RS.

APPLICATION FILED JAN. 19. 1905.

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BEST AVAILABLE COP No. 801,659. PATBNTED 001. 10, 1905;.

R. W. GOEB. A

MACHINE FOR FORMING PULP STOPPBRS.

APPLICATION PILEIP JAN. 19. 1905. 17 SHEETS T 14 Wf'fiesses:

BEST AVAILABLE COP No. 801,659. PATENTED OCT. 10, 1905.

R. W. GOEB. A

MACHINE FOR FORMING PULP ST-OPPERS.

APPLIGATION FILED JAN.19. 1905.

17 SHEETS-SHEET 15.

BEST AVAILABLE COP PATENTED OCT. 10, 1905.

R. W, GOEB.

MACHINE FOR FORMING PULP STOPPERS.

APPLICATION FILED JAN. 19. 190".

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BEST AVAILABLE COP No. 801,659. PATBNTED OCT. 10, 1905 R. W. GOEB. MACHINE FOR FORMING PULP STOPPERS.

APPLICATION FILED JAN 19 1905 I 17 SHEETS-SHEET 17.

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I RUDOLPH W. GOEB, OF ST. LOUIS, MISSOURI, ASSIGNOR TO UNITED STATES FIBER STOPP'ER COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF SOUTH DAKOTA. a

MACHINE FOR FORMING PULP STOPPERS,

Specification of Letters Patent.

Patented Oct. 10, 1905.

- Application filed January 19, 1905. Serial No. 241,865. (ModeL) To all whom it 771/Cb y007bO07'7b:

Be it known that I, RUDOLPH W. Gone, a citizen of the United States, residing at St. Louis,

Missouri, have invented a certain new and useful Improvement 1n Machlnes for Forming Pulp Stoppers, of which the following is a pulp-water. Fig. 2 is a sectional view on the line I) b of Fig. 2. Fig. 3 is a plan view of the measuring valve and discharge spouts.

. similar view showing the parts in a different position.

Fig. 5* is a detail view of one of the members of the four-part die. Fig. 6 is a vertical sectional view through the forming mechanism when the parts are in the position shown in Fig. 5. Fig. 7 is a similar View showing the parts in achanged position. Fig. 8 is a similar'view showing the parts in another position. Fig. 8? is a front elevational view of certain of the parts. Fig. 8" is a detail view of the lever for operating the valve to direct successive discharges of pulp-water into the respective draining-receptacles. Fig. 9 is a rear elevational view of the parts of the forming mechanism shown in Fig. 5. Fig. 10

is a front elevational view, partly in section,

of the forming mechanism shown in Fig. 5. Figs. 10", 10 10, 10, 10 l0 are views illustrating the shape, size, and density of the pulp-water in its different stages to and including its conversion into the finished stopper. Fig. 11 is a plan view of the frame of the machine, showing the different operating or driving parts. Fig. 12 is a side elevational view showing the means for operating the four-part die. Fig. 12 is a sectional view on the line a a of Fig. 12. Fig. 12 is a plan view of the four-part die and its operating mechanism. Fig. 13 is a side elevational view showing the operating mechanism for the coned die, &c. Fig. 13 is a detail view of the toggle-levers used in connection with the slide operating in conjunction withthe fourpart die. Fig. 13 is a top plan view showing the four-part die and said toggle-operated slide in position. 1 Fig. 14: is a side elevational ssh view of a cam for operating the side plungers,

&c. including the dumping-buckets. Fig. 15 is a top plan View of the vibrating armfor operating the buckets. Fig. 16 is a bottom plan view of said arm. Figs. 16", 16", 16, 16, 16 16 are diagrammatic views illustrating different positions of the switch -tongue, whereby the buckets are alternately operated at every second revolution of the cam. Fig. 17 is a vertical sectional view through the vibrating arm, showing the relation of the switch-tongue to its operating-cam. Fig. 18 is a face view of the valveblock or seat. Fig.

19-is a face view of the rotating valve 00- operating with said seat to control the pressures and vacuums. Fig. 20 is a horizontal sectional view through said valve parts. Fig. 21 is a detail sectional view of the vacuum water-trap. Fig. 22 is a side elevational view of the valve and its holder, which are located in the bottom of the trap. Fig. 23 is a plan view of saidvalve and holder in position in the bottom of the trap, and Fig. 24 is a sectional view of the finished'article.

This invention relates to a new and useful improvement in machines for making stoppers for bottles or other articlessuch as spools, knobs, &c,.out of paper-pulp, the object being to convert the pulp from its disintegrat'ed or separated form, where it exists in the different stages undergone by the pulp, I

will state that from a density of two grains per cubic inch in the agitating-tank (which is the fluid state) the pulp-water 1s first dumped into the bucket and given the shape shown in Referring to Figs. 10, &c., which illustrate Fig. 10. -Here the'water is given an oppor- BEST AVAILABLE COP into the shape shown in Fig. 10, where its density is increased to about forty grains per cubic inch. After this-the top-forming die:

comes down and compresses the cylindrical body of pulp endwiseto the shapev shown in Fig-.10", where its density is increased to about fifty grains per cubic inch; The cylindrical block .of pulp is now placed in the fourpart die and subjected to lateral pressure, and its density is increased to about eighty grains per cubic inch. From this point the cylindrical body of pulp is-forced through a tapered or conical die for the purpose of calendering its surface, which further compresses the pulp into the form of the finished stopper, which has a density of about ninety-five grains per cubic inch.

The actions of the several dies on the pulp result in a gradual reduction in volume and a Y proportionate increase in the density of the pulp until the desired reduced size and increased density is reached. -During the different operations heretofore outlined the wa-.

' ter which is pressed fromthe 'pulp is forced improved machine. s

by air-pressure and also drawn'by vacuum from the several dies, so as to give said dies an opportunity to act freely and quickly-on the pulp fibers.

My present invention consists in the novel details of the various elements and combinations of elements herein shown and described for manufacturing pulp stoppers; and it also consists in the improved method of making pulp stoppers or similar articles, all as will hereinafter be described and afterward pointed out in the claims.

illeasum'ng-wah;a-In the drawings, 1 indicates an appropriate frame, preferably in the form of a casting and in or upon which are mounted the several parts comprising my Supported above this frame-1 by appropriate standards 2 is a tank 3, in which is placed the pulp-waterthat is,

water containing about two grains of pulp j seen that the master-shaft, which is indicated at A, has mounted thereon an eccentric B,

bet 7 the cubical contents of said chamber being regulated by an adjustable head 8, mounted on a threaded rod engaging a fixed nut at the end of the extension. In this man- .stoppers of different sizes.

'. rod 11.

ner the volume of pulp-water may be controlled, which is desirable in manufacturing It is almost unnecessary to say that when the head 8 is moved inwardly a small volume of water will be received by this measuring-valve, whereas when the head 8 is moved outwardly a larger volume will be received.

9 indicates a weighted valve cooperating with the upper end of the cylinder 6, said valve having a hollow tubular extension which receives the reduced end 10 of an operatingend to a'lever 12, which is operated by an eccentric-rod 13. When the lever 12 is moved upwardly to the position shown by the dotand-dash lines, the shoulder at the end of the reduced portion 10 engages the tubular extension of valve 9 and lifts said valve to the position shown by dot-and-dash lines in Fig. 2. The pulp-water in the tank is then permitted to How into the cylinder 6 and fill the same and its communicating chamber 7. When the lever 12 moves down to the position shown in dotted lines in-Fig. 2, a shoulder 11 on the rod 11 engages a valve 14:, which cooperates with the seat on the lower end of cylinder -6 and permits the pulp-water to flow out of said cylinder 6 and its communicating chamber 7 It will be-noticed, however, that valve 9 is permitted to seat itself, due to its attached weight, before the valve 14 is opened. The upper face of valve 14 is provided with a conical projection to prevent the pulp fibers from lodging thereon. A sleeve 15 is mounted on a spider 15 to guide the upper end of rod 11 and engages the tubular extension on the upper valve 9 and the conical projection on the lower valve 14, so as to guide and hold said valves in their movement.- A spring 16 is arranged under the lower valve 14 to return the same to its seat when rod 11 moves upwardly, said valve 14: being seated against the lower edge of cylinder 6 before thevalve 9 is raised.

I i will say here that the entire machine is driven from a single master-shaft, except the agitator, and theeccentric which operates the rod 13 is mounted on .said shaft, so that a complete vibration is given to the lever 12 at each revolution of the shaft.

By referring toFigs. l and 11 it will be having the usual strap 6, which has connected to it the rod 13.

The water, which is measured and discharged by means of the construction 'hereinabove described, is received into a spout 17 having two branches 18. (See Fig. 3.) The ends of these branch spouts are provided with discharge-openings 19, located over their respective buckets, and in order to avoid the whirl of the pulp-water I employ bridge-pieces 20 (see Figs. 2 and 3) over the openings 19,'or I This rod is connected atits lower;

BEST AVAlLABLE COP may flatten the lower ends of the dischargespouts 1-9, as shown in Figs. 2 and 2?, so that the pulp-water will issue in the form of a flat sheet and be more evenly distributed in the bucket. The flattened discharge-spout avoids the whirling action and also renders the use of the'bridge-plate 20 for preventing said action unnecessary.

I have before stated that the measuringvalve discharges the predetermined quantity of the pulp-water into the spout 17 at every.

revolution of the main driving-shaft A. Means are provided for directing successive discharges of pulp-water into the branch spouts alternately, and this is accomplished by the use of a swinging valve 21, mounted on anappropriate'post which is provided with a lateral projection 22 at its upper end, fitting in, a slot in the upper end of a lever 23, pivoted at 24 to a casting forming the side walls and bottom of the spout. The top wall ofthe spout is preferably movable in order that access may be gained to the interior inthe event that the spout is choked up with the pulp fiber.

the main shaft A is a cam C, having a driv-. ing-pin c projecting from its periphery, which pin is adapted to cooperate with a switchtongue pivotally mounted 'in the vibrating le- Ver 27 and which vibrating lever is provided, at its front end with a pin or roller 28, fitting in an elongated slot in the lower end of the toothed segment 26, which slot. is shown in Figs. 9 and 10. The vibrating lever 27 is pi votally mounted in suitable brackets carried by the cross-pieces at the back of the frame 1, as clearly shown in Fig. 14:. At each revolution of the main shaft A and the diskG the pin 0 passes the vibrating arm 27 and in doing so rocks said arm alternately in opposite directions in the following manner: On the under side of the lever 27 aredepending marginal flanges 29, while pivoted between said flanges is aswitch-tongue 30. This switchtongue, as shown in Fig. 17, carries a springpressed pin 31, designed to be received in one of two notches in its different positions, so as to hold the switch-tongue against accidental displacement.

Referring now to Fig. 16, itwill be observed thatthe pin a is moving in the direction of the arrow and that the switch-tongue is so positioned that the pin will pass under the switchtongue and in so doing will by its initial engagement with the cam-surface 30 move the vibrating arm 27 to the position shown in Fig. 16*, in which position it will be noticed that the pin a is passing-along a straight portion 30"- of the switch-tongue, which insures the vibrating arm 27 remaining stationary in its displaced position during the passage of the pin 0 along the straight face30". This pause in the movement of the vibrating arm 27 and the toothed segment 26', which it rocks, is utilized totemporarily arrest the buckets intheir dumping position so as to. give the drained pulp time to discharge into its receivingtrough. As thesegment moves to dump the bucket its pin 25 will strike the lever 23. (see Fig. 8") and rock said lever so as to move the gate-valve to. the opposite position or in a position to direct the pulp-waterdischarging from the measuring-valve into the dumped bucket, when it is restored, As the pin 0 leaves the'straight face 3O it engages the enlargement 30, as shown by dotted lines in Fig. 16", and throws the switch-tongue to the position indicated by dotted lines in said fig ure, after which the pin 0 rides down the inclined face-30 'and inso doing-moves the vibrating arm and, its actuated parts except the gate-valve and its. operating-lever, which remain stationary, until the other bucket is being dumped, back to its normal or central I position, as shownin Fig. 16, the pin 0 issuing from engagement with the vibrating arm .while said arm is in this central position. Upon the next'revoluti'on of the disk C the pin a will ride on the inclined face,(corresponding to 30*) on the opposite side of the switch-tongue, then along a straight face, (cor:

responding to 30",) during which time the vibrating arm 27 will be caused to pause at its extreme opposite position, after which as the pin passes the enlargement (corresponding to 30) it will enter the incline(corresponding to 30) and return the vibrating arm'to its central position, the pin issuing from engagement with the tongue and vibrating arm while said arm is in its central position.-.

a Fig. 16 shows the pin entering the.camgroove in the vibrating .arm and cooperating with the switch tongue to move the samein the opposite direction above described, as shown in vFig. 16, the vibrating arm being returned to normal position, as shown in Fig. 16, Where theswitch-tongue is in the same position as that illustratedin Fig. 16.

It will .be observed in connection with the above description that at each revolution of the main shaft and of the pin 0 the vibrating arm 27 is first moved in one direction laterally and caused to pause at its extreme lateral position, the said arm being restored to its central position, where it remains until the pin on its next cycle will engage the arm and 

